Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Continuous plasma density measurement in TJ-II infrared interferometer-Advanced signal processing based on FPGAs
Year:2010
Research Areas
  • Electric engineers, electronic and automatic (eil),
  • Electronic circuits,
  • Circuits for signal treatment and instrumentation
Information
Abstract
This work presents the behavioral simulation in an FPGA of a novel processing system for measuring line average electronic density in the TJ-II stellarator diagnostic, Infra-Red Two-Color Interferometer. Line average electronic density is proportional to phase difference between probing and reference signals of the interferometer, as the Appleton¿Hartree cold plasma model states. The novelty of the approach is the development of a real time measuring system where research work has been carried out in two ways: a new interpolation algorithm and the implementation of a new specific processor on an FPGA. The main goal of this new system is to measure line plasma electronic density for several channels in real time, also it will be useful to eliminate intermediate mixing frequency stages (the output signals coming from the interferometer are going to be directly sampled) and finally to generate real time density signals for control purposes in TJ-II and in other diagnostics. This device is intended to be the new data acquisition-processing system for the future six channel infrared interferometer that requires at least 14 input signals. The knowledge acquired could be useful in the design of W7-X and ITER IR-interferometer data acquisition and processing systems.
International
Si
JCR
Si
Title
FUSION ENGINEERING AND DESIGN
ISBN
0920-3796
Impact factor JCR
1,122
Impact info
Volume
85
Journal number
From page
328
To page
331
Month
JULIO
Ranking
Participants
  • Autor: Luis Esteban Hernández (UPM)
  • Autor: Joaquin Pedro Sánchez Sanz (CIEMAT)
  • Autor: Juan Antonio Lopez Martin (UPM)
  • Autor: Miguel Sánchez Gómez (CIEMAT)
  • Autor: Octavio Nieto-Taladriz Garcia (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)